Each of the four open and user-generated innovation models has been implemented by Rockefeller, although some AID projects have only begun recently. Consistent with an open and user-generated innovation approach, AID staff members encourage community participation by having nonprofits identify development problems. Rockefeller then supports the application of open and user innovation models to find solutions. To ensure that the process is not just a theoretical exercise without definite plans for execution, Rockefeller structures incentives to encourage solutions to be implemented on the ground. For example, when a nonprofit organizations problem is solved by an InnoCentive contractor, AID pays only half of the award amount and the nonprofit pays the remainder. However, Rockefeller fully reimburses the nonprofit once the solution has been implemented.